SSA, SAS and HL Interactive

Part 1: SSA

Play with the interactive for a few minutes, and then try to answer the questions below. Drag Point B to orientate the activity.

Try to create a triangle with the following dimensions. Can you do it? If so, how many triangles match the dimensions? If not, why? Angle= The First Side Length (AB) = 4 The Second Side Length = 6

Check my answer

Try to create a triangle with the following dimensions. Can you do it? If so, how many triangles match the dimensions? If not, why? Angle= The First Side Length (AB) = 10 The Second Side Length = 6

Try to create a triangle with the following dimensions. Can you do it? If so, how many triangles match the dimensions? If not, why? Angle= The First Side Length (AB) = 10 The Second Side Length = 4

When Triangle BDE is present, what type of triangle is it?

Select all that apply

A
Scalene
B
Isosceles
C
Equilateral

What is the relationship between The Second Side Length lines and the circle?

Part 2: SAS

Play with the interactive for a few minutes, and then try to answer the questions below. Drag Point B to change the length of the second side AB.

Try to create a triangle with the following dimensions. Can you do it? If so, how many triangles match the dimensions? If not, why? The First Side Length (AC) = 4 Angle= The Second Side Length = 6

Try to create a triangle with the following dimensions. Can you do it? If so, how many triangles match the dimension? If not, why? The First Side Length (AC) = 10 Angle= The Second Side Length = 6

Try to create a triangle with the following dimensions. Can you do it? If so, how many triangles match the dimensions? If not, why? The First Side Length (AC) = 10 Angle= The Second Side Length = 4

The Big Question-Part 1

Name at least 1 thing that is the same and at least 1 thing that is different between the SAS and SSA descriptions.

The Big Question-Part 2

If I drew a triangle that you couldn't see but needed to match, which description would you prefer? Why? .

Part 3: HL

Play with the interactive for a few minutes, and then try to answer the questions below. Drag Point B to orientate the activity.

Try to create a triangle with the following dimensions. Can you do it? If so, how many triangles match the dimensions? If not, why? Angle= The First Side Length (AB) = 4 The Second Side Length = 6

Try to create a triangle with the following dimensions. Can you do it? If so, how many triangles match the dimensions? If not, why? Angle= The First Side Length (AB) = 6 The Second Side Length = 10

Try to create a triangle with the following dimensions. Can you do it? If so, how many triangles match the dimensions? If not, why? Angle= The First Side Length (AB) = 4 The Second Side Length = 10

What is different about the description of HL compared to SSA?

What is different about the diagrams of HL compared to SSA?

The Big Question-Part 3

Using the scenario: If I drew a triangle that you couldn't see but needed to match. Rank SSA, SAS, and HL from best to worst description to use for drawing a matching triangle. Explain.